| From: |
| abdellatif.elkhlifi-AT-arm.com |
| To: |
| Bjorn Andersson <andersson-AT-kernel.org>, Mathieu Poirier <mathieu.poirier-AT-linaro.org>, Rob Herring <robh+dt-AT-kernel.org> |
| Subject: |
| [PATCH 0/3] remoteproc: introduce Arm remoteproc support |
| Date: |
| Fri, 01 Mar 2024 16:42:24 +0000 |
| Message-ID: |
| <20240301164227.339208-1-abdellatif.elkhlifi@arm.com> |
| Cc: |
| Liviu Dudau <liviu.dudau-AT-arm.com>, Sudeep Holla <sudeep.holla-AT-arm.com>, Lorenzo Pieralisi <lpieralisi-AT-kernel.org>, Krzysztof Kozlowski <krzysztof.kozlowski+dt-AT-linaro.org>, Conor Dooley <conor+dt-AT-kernel.org>, Drew.Reed-AT-arm.com, Adam.Johnston-AT-arm.com, Abdellatif El Khlifi <abdellatif.elkhlifi-AT-arm.com>, linux-arm-kernel-AT-lists.infradead.org, devicetree-AT-vger.kernel.org, linux-kernel-AT-vger.kernel.org, linux-remoteproc-AT-vger.kernel.org |
| Archive-link: |
| Article |
From: Abdellatif El Khlifi <abdellatif.elkhlifi@arm.com>
Some Arm heterogeneous System-On-Chips feature remote processors that can
be controlled with a reset control register and a reset status register to
start or stop the processor.
This patchset adds support for these processors by providing the
following:
1) A remoteproc driver that retrieves the reset registers addresses from
the DT, register a new rproc device with the remoteproc subsystem and
provides the start and stop operations for switching on or off the remote
processor.
The start and stop operations are provided as a data config selected on DT node match.
Currently we are providing support for Corstone-1000 External System (Cortex-M3) [1]
as a remote processor. The driver can be extended to support other remote processors
by adding a data config and custom implementation of the start and stop operations.
2) DT bindings
3) Support control of multiple remote processors at the same time
[1]: https://developer.arm.com/documentation/102360/0000/Overv...
Cheers,
Abdellatif
Abdellatif El Khlifi (3):
remoteproc: Add Arm remoteproc driver
arm64: dts: Add corstone1000 external system device node
dt-bindings: remoteproc: Add Arm remoteproc
.../bindings/remoteproc/arm,rproc.yaml | 69 +++
MAINTAINERS | 7 +
arch/arm64/boot/dts/arm/corstone1000.dtsi | 10 +-
drivers/remoteproc/Kconfig | 18 +
drivers/remoteproc/Makefile | 1 +
drivers/remoteproc/arm_rproc.c | 395 ++++++++++++++++++
6 files changed, 499 insertions(+), 1 deletion(-)
create mode 100644 Documentation/devicetree/bindings/remoteproc/arm,rproc.yaml
create mode 100644 drivers/remoteproc/arm_rproc.c
base-commit: 8b46dc5cfa5ffea279aed0fc05dc4b1c39a51517
--
2.25.1
